Move LedDeviceManager to QScopedPointer
Move GrabManager to QScopedPointer in LightpackApplication class.
Move MoodLampManager to QScopedPointer in LightpackApplication class.
Move PluginsManager to QScopedPointer in LightpackApplication class.
Move LightpackPluginInterface to QScopedPointer in LightpackApplication class.
Get rid of unused LightpackApplication::m_mutex object.
Rename m_EventFilters to m_eventFilters.
Remove unnecessary dynamic object creation.